Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| True or False: The air you breathe is part of the Earth's atmosphere, the blanket of gases that surrounds the earth. | True
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| What are two functions of the respiratory system? | 1. Take in oxygen. 2. Release carbon dioxide and water.
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| What is respiration? | The process by which cells break down simple food molecules to release the energy they contain.
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| What is needed for energy-releasing chemical reactions that take place inside your cells? | Oxygen
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| True or False: Most of the air you breathe in goes back into the atmosphere when you exhale. | True
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| List three products of respiration. | 1. Water 2. Carbon Dioxide 3. Energy
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| True or False: To a scientist, breathing and respiration mean the same thing. | False
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| Which of these organ systems make respiration possible? Circulatory system - reproductive system - respiratory system - digestive system | 1. Circulatory System 2. Respiratory System 3. Digestive System
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| True or False: When you breathe in air, you also breathe in dust, pollen and microorganisms. | True
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| Complete a chart showing the Path of Air. | Do on seperate sheet of paper.
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| What does a sneeze do? | Launches out particals and bacteria.
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| What is another name for the pharynx? | Throat
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| Moistens the air and traps particles in the air. | Mucus
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| Openings in the nose through which air enters | Nostrils
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| Tiny hairlike extensions that sweep mucus into the throat. | Cilia
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| Spaces lined with cilia and mucus. | Nasal Cavities
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| What two body parts are connected to the Pharynx? | Nose and mouth
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| The walls of the trachea are made up of rings of ______ that strengthen the trachea and keep it open. | Cartalige
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| True or False: The cilia and mucus in the trachea sweep upward, moving the mucus toward the throat where it is swallowed out. | True
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| If food enters the trachea, a person can do what? | Choke
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| Which respiratory organs does air reach after the bronchi? | Lungs
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| True or False: Inside the lungs, each bronchus divides into smaller and smaller tubes. | True
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| What happens in the alveoli? | The movement of gases between air and blood.
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| What occurs during the process of gas exchange? | Air enters the alveolus-oxygen passes through the wall of the alveolus and then through the capillary wall into the blood.
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| Why can the lungs absorb a large amount of oxygen? | Because you have so many alveoli.
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| Give the path of air. | 1. Nostrils 2. Pharynx 3. Trachea 4. Bronchi
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Created by:
Jon13